Re: [Pharo-users] How to declare a do:[] loop for a matrix to read and acces its elements?

[Ben Coman]

On 16 January 2018 at 22:05, Photon <nico-br...@live.de> wrote:
> That looks ideed cool thanx Nicolai for the hint.
>
> @Ben du you have an idea how to store the prevoius generations? I case
> something cool happens and you want to rewind to have a closer look

In a well designed app, you'd have "grid" instance variable instead of
"cellsAlive"
so then it could be something like...
  LifeGrid >> storeGeneration
       generations ifNil: [generations := OrderedCollection new].
       generations add: grid copy.

but perhaps manipulating a single grid in-place causes complications
and you are better off
replacing the whole grid each generation.  Then you don't need the #copy.

cheers -ben